1)Make three matches with the following metals and a substance that may act as a

Question

1)Make three matches with the following metals and a substance that may act as a suitable sacrificial electrode.

Metals are nickel, iron and silver

Gold-sacrificial electrode

Copper - sacrificial electrode

PbSO4 - sacrificial electrode

Manganese- sacrificial electrode

Iron- sacrificial electrode

A

Gold-sacrificial electrode

B.

Copper - sacrificial electrode

C.

PbSO4 - sacrificial electrode

D.

Manganese- sacrificial electrode

E.

Iron- sacrificial electrode

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Explanation / Answer

1)Make three matches with the following metals and a substance that may act as a suitable sacrificial electrode.

Note that we must use metals that will oxidize before the metal of interest

so...

nickel --> use manganese

iron ---> use PbSO4

silver --> Use iron

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